$back:#ff9344;

@function size($px) {
    @return 100 * $px/750 + vw;
}


@mixin web($w,$h) {
    width: size($w);
    height: size($h);
    margin: 0 auto;
}

footer{
    @include web(750,128);
     position: fixed;   //固定定位
     bottom: 0;
     background-color: white;
    .homefooter{
        display: flex;
        flex-direction: row;
        justify-content: space-evenly;
        img{
            width: size(69);
            height: size(66);
            margin-top: size(10);
        }
        a{
            text-decoration: none;
            color: black;
        }
    }
}